Patent US2656535A successfully refreshed from Google Patents.
Patent US3209977A successfully refreshed from Google Patents.
US3209977A
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Assignee: Reynolds Metals Co
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Filing: 1963-04-15
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Granted: 1965-10-05
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Expires: 1983-04-15
Abstract
No abstract record available.
Inventors
- 👤 Nathaniel A Lewis
- 👤 Jr Thomas E Kirby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:27
CPC Classifications
D; D06; D06F; D06F95/00; D06F95/002; D06F95/004; D06F95/006; Y; Y10; Y10S; Y10S220/00; Y10S220/30; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/24; Y10T428/24777
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
A WATER SOLUBLE PLASTIC FILM LAUNDRY BAG FOR HOLDING WET LINENS AT BODY TEMPERATURE OR COLDER AND WHICH RELEASES ITS CONTENTS WHEN IMMERSED IN WATER HAVING A TEMPERATURE BELOW ABOUT 100*F. AND THEREAFTER DISSOLVES COMPLETELY IN HOT WATER, COMPRISING SUPERIMPOSED PANELS OF HOT WATER SOLUBLE FLEXIBLE PLASTIC FILM HAVING GOOD DAMP STABILITY, THE TOP MARGINS OF THE PANELS BEING SEPARABLE TO PROVIDE AN OPENING FOR FILLING THE BAG, SAID PANELS HAVING AT LEAST ONE RELEASABLE SIDE SEAM PORTION ALONG ONE PAIR OF MARGINAL EDGES THEREOF COMPRISING A LONGITUDINAL EDGE OF ONE PANEL REVERSELY FOLDED TO ENCLOSE A LONGITUDINAL EDGE OF THE OPPOSING PANEL AND A LAYER OF COLD WATER SENSITIVE PLASTIC MATERIAL POSITIONED ADJACENT TO SAID LONGITUDINAL EDGES AND OVERLAPPING AND ADHERING TO THE EXTERIOR OF SAID FOLDED EDGE AND THE BODY PORTION OF SAID OPPOSING PANEL, SAID PLASTIC LAYER BEING READILY SOFTENED BY WATER AT A TEMPERATURE BELOW ABOUT 100*F. TO EFFFECT RELEASE OF THE SEAM, SAID PANELS BEING BONDED TOGETHER DIRECTLY TO FORM SEAMS AT THEIR REMAINING EDGE MARGINS.
Claim 2
Dependent Claim
171 words
A WATER SOLUBLE PLASTIC FILM LAUNDRY BAG FOR HOLDING WET LINENS AT BODY TEMPERATURE OR COLDER AND WHICH RELEASES ITS CONTENTS WHEN IMMERSED IN WATER HAVING A TEMPERATURE BELOW ABOUT 100*F. AND THEREAFTER DISSOLVES COMPLETELY IN HOT WATER, COMPRISING SUPERIMPOSED PANELS OF HOT WATER SOLUBLE FLEXIBLE PLASTIC FILM HAVING GOOD DAMP STABILITY, THE TOP MARGINS OF THE PANELS BEING SEPARABLE TO PROVIDE AN OPENING FOR FILLING THE BAG, SAID PANELS HAVING AT LEAST ONE RELEASABLE SIDE SEAM PORTION ALONG ONE PAIR OF MARGINAL EDGES THEREOF COMPRISING A LONGITUDINAL EDGE OF ONE PANEL REVERSELY FOLDED TO ENCLOSE A LONGITUDINAL EDGE OF THE OPPOSING PANEL AND A LAYER OF COLD WATER SENSITIVE PLASTIC MATERIAL POSITIONED ADJACENT TO SAID LONGITUDINAL EDGES AND OVERLAPPING AND ADHERING TO THE EXTERIOR OF SAID FOLDED EDGE AND THE BODY PORTION OF SAID OPPOSING PANEL, SAID PLASTIC LAYER BEING READILY SOFTENED BY WATER AT A TEMPERATURE BELOW ABOUT 100*F. TO EFFFECT RELEASE OF THE SEAM, SAID PANELS BEING BONDED TOGETHER DIRECTLY TO FORM SEAMS AT THEIR REMAINING EDGE MARGINS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |